<form>
    <input type="text" class="email" placeholder="Enter email / mobile" required="required" pattern="([\w-\.]+@([\w-]+\.)+[\w-]{2,4})?"/>
    <input type="password" placeholder="Password" required="required" pattern=".{6,}" title="Minimum 6 characters required" autocomplete="off" />
    <input type="submit"  value="LOGIN"/>
</form>